IMPORTANT!
Chillers equipped with a high pressure positive displacement pump have a pressure regulator inside of the chiller and a pressure gauge on the control panel. To access this regulator, remove the rear air grille. The valve is located to the right. On models 6107 & 6705, 6155 the regulator is located center point, upper grille (rear).
The Pressure Valve is FACTORY ADJUSTED to 40psi. If you do NOT want to operate at this pressure, or do not know what your operating pressure should be, start at a lower operating pressure. Reduce the pressure by turning the valve counterclockwise (unscrew outward) before starting the chiller.
With the chiller fully connected and running, read the pressure gauge and turn the regulator to the desired pressure. If required, an optional external pressure reducing assembly is available for this pump to reduce the pressure to 10 - 45 psi.
2.4Setting Up a Closed System or Cooling Coil to the Chiller
1.Connect your closed cooling system to the chiller with hoses or pipes. The direction of the flow through the system can be controlled by the way the hoses or pipes are connected to the chiller. The “Inlet” will draw liquid into the chiller; the “Outlet” will pump liquid out.
2.Turn the access panel screws to remove the top cover and expose the reservoir. Turn the filler cap and lift up to remove. Use a funnel to fill the reservoir with fluid. When full, remove the funnel, but do not replace the cap at this time. Check hoses and fittings for tightness and be sure there are no bends or crimps in the hoses.
3.Plug the chiller into the proper AC outlet (unit's electrical requirements on rear of unit). Press the POWER ON button. The chiller will begin pumping liquid through your system. Check for leaks.
4.With the pump running, the reservoir's fluid level will decrease as the closed system begins to fill. Add a little fluid at a time until the level in the reservoir stops going down. This means that your system is filled and the air has been purged from it. Replace the reservoir cap and turn it clockwise to lock it. Recheck the cap for tightness.
Note: When chillers with the standard magnetic drive centrifugal pump are connected to an external apparatus with a
2.5Setting Up an Open Bath System to the Chiller
1.Connect hoses to the Inlet and Outlet fittings on the back of the chiller. The "Inlet" draws fluid into the chiller, the "Outlet" pumps fluid out. Fill the open bath. Considering this flow, position the hoses in your bath for a good circular flow and stirring motion.
2.Turn the panel screws to remove the top cover and access the reservoir. Turn and lift the filler cap to remove. Use a funnel to fill the reservoir with the same fluid in your bath. This primes the pump and helps establish a flow when the chiller is turned on.
3.Replace the reservoir cap and turn to lock it. Check for tightness. Check all hoses and fittings. Be sure there are no bends or crimps in the hoses, and that the hose attached to the chiller's inlet is submerged near the bottom of the bath. Secure the inlet and outlet hoses to the open tank so they do not move when pumping starts. The bath's fluid level will drop slightly as the hoses in the system fill up with fluid. The bath's fluid must cover the chiller's inlet hose.
4.Plug the unit into the proper AC outlet (unit's electrical requirements on rear of unit). Press the Power On button. The chiller will begin pumping fluid through your system. Check for leaks.
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